Gas-pressure regulator.



PATENTED APR. '21, 1908.

v No. 885,681;

' J. w. WEEKS. GASPRESSUREREGULATOR.

APPLICATION FILED MAY 15, 1907.

IN NTUR ATTDRNEY TH! "man's D87!!! 60., 'ASIHNGTON. n c,

JOHN W. WEEKS, OF PROVIDENCE, RHODE ISLAND.

GAS-PRESSURE REGULATOR.

Specification of Letters Patent.

Application filed May 15, 1907.

Patented April 21, 1908.

Serial No. 373,874.

T 0 all whom it may concern:

Be it known that I, JOHN W. WEEKs, a citizen of the United States,residing at Providence, in the State of Rhode Island, have inventedcertain new and useful Improvements in Gas-Pressure Regulators, of Iwhich the following is a specification.

My invention consists in the improved link connection between the inletvalve and the regulating medium, and in the employment of an automaticvalve for preventing the ejection of the quicksilver from its annularholding chamber upon the ap lication of a back pressure in the gas pipesfbr the purpose of clearing out the foreign matter therefrom.

In the accompanying drawings: Figure 1 represents a vertical section ofa gas pressure regulator embodying my improvement. Fig. 2, represents ahorizontal section taken in the line 2 2 of Fig. 1.

In the drawing, A is the valve casing, which broadens out as it extendsupward into a cylindrical portion B, as shown 1n Fig. 2. Inside of thecylindrical portion B, is

laced the inverted cup formed shell C which is secured tightly tothevalve casing A so as to form a narrow annular watertight chamber D,between the periphery of the shell C, and the inner wal of the saidcylindrical portion B. The chamber D is partially filled withquicksilver and serves to receive the lower portion of the regulatinggasometer E, which fits loosely therein.

The frame F is secured to the bottom of the valve casing A, by means ofthe screws a, a, and to the end I) of the said frame are loosely pivoteda pair of links G, only one of which can be shown in the sectionaldrawing Fig. 1, the said links being loosely pivoted at op osite sidesof the ear 0, of the swinging va ve H, and between the said links G andthe said ear, and at op osite sides of the ear 0, are loosely pivote apair of links I, only one of which is shown in the drawing. The arms eof the air of forked links J, only one of which is sfiown in thedrawing, are jointed at 76 to the links I, the said pair of forked linksJ, being loosely pivoted at opposite sides of the standard (1 of theframe F. The arms e of the said forked links J, are loosely jointed tothe opposite sides'of the valve spindle K, which spindle is arranged toass loosely through the ripening f in the shell and to the upper en ofthe said valve spindle is secured the gasometer E, over the top of whichare placed the removable adjusting weights L, L, whereby the pressure ofthe flow of gas from the meter is determined.

The shell C is provided with the openings g, g, through which the gaspasses from the chamber M of the valve casing to the chamber N of thegasometer, the said shell C, bem also provided with the valve-seat h.The va ve O is annular in form and rests loosely upon the circularvalve-seat i, formed upon the eriphery of the collar P, which is securedto t e valve-spindle. The chamber Q, over the gasometer E, is providedwith the loose removable cover R.

The operation of the gas regulator may be described as follows: Theregulator is preferably inserted into the main supply-pipe of theordinary gas-supply system between the meter and the burners. Thegasometer E rises and falls freely in the annular chamber D, and issealed by the mercury contained in the said chamber. The gasometer isconnected to operate the swinging valve H, through the action of thelinks G, I and J. Now when all the burners in the system are closed, thegas pressure rises in the pipes and forces up the gasometer, so that thevalve H is carried over against its seat S, and the further supply ofgas is shut off. And when one of the burners is relighted the gasometerwill be caused to fall slightly and open the valve sufficiently tosupply the proper quantity of gas to the said burner. And when twoburners are lighted the gasometer will fall a little lower and admit agreater quantity, and so on until all of the burners are lighted, whenthe valve will be opened sufficiently to supply them.

When a back pressure is applied to the gassupply pipes for the purposeof cleaning them, the valve H will be forced back to its seat, and thevalve spindle K is carried upward until the annular valve 0 is closed atboth its upper and lower seats, so that a sudden increase of backpressure within the gasometer and consequent dispersion of thequicksilver in the chamber D will be prevented. By means of the annularconstruction of the valve 0 the proper seating of the valve is assured.And by the employment of the forked links J the joint j between the armse of the said forked links and the valvespindle K is removed from thejoint 70 between the arms e of the said forked links and the links 1,whereby a more direct movement is imparted to the valve spindle K.

I claim as my invention:

1. In a gas regulator, the combination of the valve casing, the inletvalve, the gasometer, the gasometer spindle and the connecting links,whereby the inlet valve and gasometer are caused to move simultaneously,and a connected valve for closing the gas passage to the chamber of thegasometer, upon the closing of the inlet valve.

2. In a gas regulator, the combination of the valve casing, theregulating gasometer, the cup-formed shell provided with openingsthrough which the gas passes from the chamber of the valve casing to thechamber of the gasometer, the spindle of the gasometer passing looselythrough an opening in the said shell, the forked link jointed at one armto the spindle of the gasometer the frame to which the forked link ispivoted, the link jointed to the other arm of the forked link, and theinlet valve jointed to the said frame, and to the link which is jointedto the arm of the forked link.

3. In a gas regulator, the combination of the valve casing, the inletvalve, the gasometer, the gasometer spindle, the circular valve seatupon the said spindle, the connecting links whereby the inlet valve andgasoineter are caused to move simultaneously, the shell which serves toseparate the chamber of the gasometer from the chamber of the valvecasing and is provided with an opening between the said chambers, thevalve seat upon the shell surrounding the said opening, and the looseannular valve held between the said valve seats of the gasometer spindleand the casing.

4. In a gas regulator, the combination of the valve casing, the inletvalve, the gasometer, a gasometer spindle connected. therewith,connections from said spindle to said inletvalve, the shell provided.with an opening adapted for communication between the chamber of thevalve casing and the chamber of the gasometer, the circular valve seatsurrounding the said opening, and a valve carried by said said openingupon the closing of the inlet valve.

JOHN WEEKS.

W itnesses:

SOCRATES ScHoLFmLn,

COLIN M. HoLMEs.

gasonieter spindle for closing F

